./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:21,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:21,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:55:21,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:21,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:21,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:21,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:21,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:21,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:21,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:21,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:21,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:21,192 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:21,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:21,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:21,194 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:21,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:21,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:21,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:21,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:21,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:21,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:21,199 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:21,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:21,200 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:21,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:21,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:21,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:21,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:21,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:21,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:21,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:21,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:21,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:21,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:21,206 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:21,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:21,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:21,208 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:21,209 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea [2023-11-19 07:55:21,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:21,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:21,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:21,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:21,609 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:21,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2023-11-19 07:55:24,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:25,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:25,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2023-11-19 07:55:25,116 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/data/3d8a7c540/c11b505ac3a644d4bf727954850ee14d/FLAGda0612d4b [2023-11-19 07:55:25,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/data/3d8a7c540/c11b505ac3a644d4bf727954850ee14d [2023-11-19 07:55:25,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:25,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:25,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:25,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:25,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:25,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507692f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25, skipping insertion in model container [2023-11-19 07:55:25,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,216 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:25,418 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[2141,2154] [2023-11-19 07:55:25,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:25,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:25,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 07:55:25,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-19 07:55:25,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2023-11-19 07:55:25,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [238] [2023-11-19 07:55:25,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [306] [2023-11-19 07:55:25,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [402] [2023-11-19 07:55:25,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [768] [2023-11-19 07:55:25,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [849] [2023-11-19 07:55:25,584 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[2141,2154] [2023-11-19 07:55:25,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:25,708 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:25,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25 WrapperNode [2023-11-19 07:55:25,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:25,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:25,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:25,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:25,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,774 INFO L138 Inliner]: procedures = 50, calls = 93, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 160 [2023-11-19 07:55:25,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:25,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:25,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:25,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:25,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:25,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:25,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:25,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:25,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (1/1) ... [2023-11-19 07:55:25,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:25,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:25,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:25,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:55:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:55:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:55:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:55:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:55:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:55:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:55:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:55:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:55:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:55:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:55:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:55:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:25,989 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:25,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:26,305 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:26,315 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:26,315 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:55:26,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:26 BoogieIcfgContainer [2023-11-19 07:55:26,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:26,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:26,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:26,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:26,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:25" (1/3) ... [2023-11-19 07:55:26,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d09f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:26, skipping insertion in model container [2023-11-19 07:55:26,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:25" (2/3) ... [2023-11-19 07:55:26,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d09f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:26, skipping insertion in model container [2023-11-19 07:55:26,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:26" (3/3) ... [2023-11-19 07:55:26,341 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2023-11-19 07:55:26,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:26,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:55:26,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:26,417 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ccedd95, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:26,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:55:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 62 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:55:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:55:26,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:26,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:26,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:26,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:26,442 INFO L85 PathProgramCache]: Analyzing trace with hash 566445789, now seen corresponding path program 1 times [2023-11-19 07:55:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994102367] [2023-11-19 07:55:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:26,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:55:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:26,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994102367] [2023-11-19 07:55:26,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994102367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:26,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:26,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496954079] [2023-11-19 07:55:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:26,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:26,742 INFO L87 Difference]: Start difference. First operand has 74 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 62 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:26,777 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2023-11-19 07:55:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:55:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:26,796 INFO L225 Difference]: With dead ends: 140 [2023-11-19 07:55:26,797 INFO L226 Difference]: Without dead ends: 65 [2023-11-19 07:55:26,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:26,811 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:26,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:26,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-19 07:55:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-19 07:55:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:55:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2023-11-19 07:55:26,870 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 25 [2023-11-19 07:55:26,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:26,871 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2023-11-19 07:55:26,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2023-11-19 07:55:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:55:26,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:26,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:26,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:26,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:26,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash 453650771, now seen corresponding path program 1 times [2023-11-19 07:55:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500676043] [2023-11-19 07:55:26,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:26,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:55:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:27,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:27,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500676043] [2023-11-19 07:55:27,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500676043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:27,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:27,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876200319] [2023-11-19 07:55:27,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:27,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:27,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:27,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,156 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:27,174 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2023-11-19 07:55:27,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:27,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 07:55:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:27,177 INFO L225 Difference]: With dead ends: 96 [2023-11-19 07:55:27,177 INFO L226 Difference]: Without dead ends: 56 [2023-11-19 07:55:27,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,180 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:27,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-19 07:55:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-19 07:55:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 48 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:55:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2023-11-19 07:55:27,193 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 26 [2023-11-19 07:55:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:27,196 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2023-11-19 07:55:27,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2023-11-19 07:55:27,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:55:27,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:27,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:27,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:27,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:27,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:27,204 INFO L85 PathProgramCache]: Analyzing trace with hash 216187885, now seen corresponding path program 1 times [2023-11-19 07:55:27,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:27,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058158283] [2023-11-19 07:55:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:55:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:27,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:27,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058158283] [2023-11-19 07:55:27,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058158283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:27,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:27,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10149839] [2023-11-19 07:55:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:27,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:27,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,401 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:27,433 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2023-11-19 07:55:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:27,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-19 07:55:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:27,436 INFO L225 Difference]: With dead ends: 105 [2023-11-19 07:55:27,436 INFO L226 Difference]: Without dead ends: 56 [2023-11-19 07:55:27,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,439 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:27,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-19 07:55:27,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-19 07:55:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:55:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2023-11-19 07:55:27,454 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 30 [2023-11-19 07:55:27,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:27,455 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2023-11-19 07:55:27,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:55:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2023-11-19 07:55:27,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:55:27,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:27,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:27,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:55:27,458 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:27,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1177248900, now seen corresponding path program 1 times [2023-11-19 07:55:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814540738] [2023-11-19 07:55:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:27,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:55:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:55:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:27,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:27,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814540738] [2023-11-19 07:55:27,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814540738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:27,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:27,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:55:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518013915] [2023-11-19 07:55:27,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:27,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:55:27,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:55:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:27,653 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:27,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:27,751 INFO L93 Difference]: Finished difference Result 150 states and 196 transitions. [2023-11-19 07:55:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-19 07:55:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:27,755 INFO L225 Difference]: With dead ends: 150 [2023-11-19 07:55:27,756 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 07:55:27,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:55:27,759 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 39 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:27,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 257 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 07:55:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2023-11-19 07:55:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 82 states have internal predecessors, (96), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2023-11-19 07:55:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 125 transitions. [2023-11-19 07:55:27,787 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 125 transitions. Word has length 35 [2023-11-19 07:55:27,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:27,788 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 125 transitions. [2023-11-19 07:55:27,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2023-11-19 07:55:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 07:55:27,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:27,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:27,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:27,792 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:27,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash -17013609, now seen corresponding path program 1 times [2023-11-19 07:55:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:27,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390526471] [2023-11-19 07:55:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:27,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:55:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:55:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:27,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:27,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390526471] [2023-11-19 07:55:27,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390526471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:27,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:27,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099511450] [2023-11-19 07:55:27,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:27,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:27,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,899 INFO L87 Difference]: Start difference. First operand 98 states and 125 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:27,924 INFO L93 Difference]: Finished difference Result 174 states and 223 transitions. [2023-11-19 07:55:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2023-11-19 07:55:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:27,927 INFO L225 Difference]: With dead ends: 174 [2023-11-19 07:55:27,928 INFO L226 Difference]: Without dead ends: 83 [2023-11-19 07:55:27,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:27,931 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:27,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-19 07:55:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-19 07:55:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:55:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2023-11-19 07:55:27,951 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 37 [2023-11-19 07:55:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:27,952 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2023-11-19 07:55:27,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2023-11-19 07:55:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:55:27,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:27,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:27,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:27,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:27,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1405090262, now seen corresponding path program 1 times [2023-11-19 07:55:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:27,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444542867] [2023-11-19 07:55:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:27,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:27,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:28,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:28,032 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:28,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:55:28,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:55:28,040 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:55:28,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:28,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-19 07:55:28,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:28 BoogieIcfgContainer [2023-11-19 07:55:28,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:28,148 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:28,149 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:28,149 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:28,150 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:26" (3/4) ... [2023-11-19 07:55:28,151 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:55:28,170 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-19 07:55:28,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:28,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:28,247 INFO L158 Benchmark]: Toolchain (without parser) took 3113.56ms. Allocated memory is still 155.2MB. Free memory was 123.9MB in the beginning and 60.4MB in the end (delta: 63.5MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,248 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 155.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:28,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.90ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 104.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.27ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,249 INFO L158 Benchmark]: Boogie Preprocessor took 40.67ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 101.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:28,249 INFO L158 Benchmark]: RCFGBuilder took 502.83ms. Allocated memory is still 155.2MB. Free memory was 101.1MB in the beginning and 85.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,250 INFO L158 Benchmark]: TraceAbstraction took 1812.48ms. Allocated memory is still 155.2MB. Free memory was 84.9MB in the beginning and 63.7MB in the end (delta: 21.2MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,250 INFO L158 Benchmark]: Witness Printer took 98.55ms. Allocated memory is still 155.2MB. Free memory was 63.7MB in the beginning and 60.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:28,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 155.2MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.90ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 104.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.27ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.67ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 101.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.83ms. Allocated memory is still 155.2MB. Free memory was 101.1MB in the beginning and 85.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1812.48ms. Allocated memory is still 155.2MB. Free memory was 84.9MB in the beginning and 63.7MB in the end (delta: 21.2MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 98.55ms. Allocated memory is still 155.2MB. Free memory was 63.7MB in the beginning and 60.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 238]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [238] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [306] - GenericResultAtLocation [Line: 402]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [402] - GenericResultAtLocation [Line: 768]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [768] - GenericResultAtLocation [Line: 849]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [849] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L105] int pumpRunning = 0; [L106] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L572] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L770] int waterLevel = 1; [L771] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L243] int splverifierCounter ; [L244] int tmp ; [L245] int tmp___0 ; [L246] int tmp___1 ; [L247] int tmp___2 ; [L250] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L252] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L254] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L260] tmp = __VERIFIER_nondet_int() [L262] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L264] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L788] COND TRUE waterLevel < 2 [L789] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L264] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L270] tmp___0 = __VERIFIER_nondet_int() [L272] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L280] tmp___2 = __VERIFIER_nondet_int() [L282] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L295] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] COND TRUE \read(systemActive) [L122] CALL processEnvironment() [L142] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] RET processEnvironment() [L128] CALL __utac_acc__Specification3_spec__1() [L851] int tmp ; [L852] int tmp___0 ; [L853] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] int retValue_acc ; [L812] retValue_acc = methaneLevelCritical [L813] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L857] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE !(\read(tmp)) [L863] CALL, EXPR getWaterLevel() [L841] int retValue_acc ; [L844] retValue_acc = waterLevel [L845] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L863] RET, EXPR getWaterLevel() [L863] tmp___0 = getWaterLevel() [L865] COND TRUE tmp___0 == 2 [L867] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L867] RET, EXPR isPumpRunning() [L867] tmp___1 = isPumpRunning() [L869] COND FALSE !(\read(tmp___1)) [L873] CALL __automaton_fail() [L92] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 595 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 243 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 352 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:55:28,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dbcd77a-d7b9-4f76-baf7-e75b44506fff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE